/* BioStudio AI — desktop surface + icons (Windows 11 style) */

.desktop-surface {
  position: absolute;
  /* Prefer the larger of BioStudio taskbar clearance and any OS dock overlap so
     we never double-count, and windows stay above whichever bar is taller. */
  inset: 0 0 max(var(--taskbar-clearance, var(--taskbar-h)), var(--os-system-dock-clearance, 0px)) 0;
  overflow: hidden;
  transition: inset 0.24s ease;
}

.desktop-icons {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.desktop-icon {
  position: absolute;
  pointer-events: auto;
  touch-action: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(4px, calc(6px * var(--shell-scale)), 7px);
  border-radius: 12px;
  padding: clamp(6px, calc(8px * var(--shell-scale)), 9px) 4px clamp(5px, calc(6px * var(--shell-scale)), 7px);
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.55), 0 2px 8px rgba(0, 0, 0, 0.35);
  border: 1px solid transparent;
  transition:
    background 0.14s ease,
    border-color 0.14s ease,
    box-shadow 0.14s ease,
    transform 0.16s cubic-bezier(0.34, 1.4, 0.64, 1);
}

/* Icon sizes */
.size-large .desktop-icon { width: var(--desktop-icon-width-large); }
.size-medium .desktop-icon { width: var(--desktop-icon-width-medium); }
.size-small .desktop-icon { width: var(--desktop-icon-width-small); }

.desktop-icon:hover {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.09));
  border-color: rgba(255, 255, 255, 0.22);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.18);
  transform: translateY(-1px);
}
/* Use .is-pressing (primary button only) — :active also fires on right-click */
.desktop-icon.is-pressing { transform: scale(0.965); }
.desktop-icon:focus-visible { outline: none; }
.desktop-icon.selected {
  background: linear-gradient(180deg, rgba(125, 175, 255, 0.34), rgba(105, 155, 245, 0.24));
  border-color: rgba(150, 192, 255, 0.65);
  box-shadow: 0 6px 18px rgba(30, 70, 160, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.24);
}
.desktop-icon.dragging {
  opacity: 0.82;
  z-index: 50;
  pointer-events: none;
  cursor: grabbing;
  user-select: none;
  will-change: transform;
  transition: none;
}
.desktop-icon.drop-target {
  background: linear-gradient(180deg, rgba(125, 175, 255, 0.42), rgba(105, 155, 245, 0.32));
  border-color: rgba(185, 215, 255, 0.95);
  box-shadow: 0 0 0 3px rgba(120, 170, 255, 0.25), 0 8px 22px rgba(30, 70, 160, 0.28);
}

/* Native desktop folders. Windows-style shells use the familiar warm yellow
   folder; macOS overrides this below with Finder blue. */
.desktop-native-folder {
  position: relative;
  display: block;
  min-width: 34px;
  min-height: 25px;
  isolation: isolate;
  filter: drop-shadow(0 2px 2px rgba(0, 0, 0, 0.24)) drop-shadow(0 5px 8px rgba(0, 0, 0, 0.2));
}

.desktop-native-folder::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: 0;
  left: 4%;
  width: 47%;
  height: 34%;
  border-radius: 5px 5px 1px 1px;
  background: linear-gradient(180deg, #ffe28a, #dca938);
}

.desktop-native-folder::after {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 20% 0 0;
  border: 1px solid rgba(120, 76, 5, 0.24);
  border-radius: 4px 6px 7px 7px;
  background: linear-gradient(155deg, #ffdf68 0%, #f7c33e 55%, #dea126 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.58);
}

.desktop-native-folder-arrow {
  position: absolute;
  z-index: 2;
  left: 50%;
  top: 54%;
  transform: translate(-50%, -50%);
  color: #79520b;
  font-size: 0.7em;
  font-weight: 900;
  line-height: 1;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.45);
}

.desktop-surface.app-drop-active::after {
  content: "Drop to add to desktop";
  position: absolute;
  left: 50%;
  bottom: 18px;
  z-index: 130;
  transform: translateX(-50%);
  padding: 8px 13px;
  border-radius: 999px;
  color: #fff;
  background: rgba(12, 16, 28, 0.72);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(24px) saturate(1.5);
  -webkit-backdrop-filter: blur(24px) saturate(1.5);
  font-size: 12px;
  pointer-events: none;
}

.desktop-icon-glyph {
  position: relative;
  line-height: 1;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.28)) drop-shadow(0 4px 10px rgba(0, 0, 0, 0.3));
  transition: transform 0.16s cubic-bezier(0.34, 1.4, 0.64, 1);
}
.desktop-icon:hover .desktop-icon-glyph { transform: scale(1.05); }
.desktop-icon.is-pressing .desktop-icon-glyph { transform: scale(0.98); }
.desktop-icon-notif-badge {
  position: absolute;
  top: -4px;
  right: -6px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 8px;
  background: #ef4444;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  align-items: center;
  justify-content: center;
  line-height: 16px;
  pointer-events: none;
  z-index: 2;
  filter: none;
  text-shadow: none;
}
.desktop-icon-glyph .icon svg { width: 100%; height: 100%; display: block; }
.desktop-icon-glyph .icon.icon-emoji { line-height: 1; }
.size-large .desktop-icon-glyph .icon { width: var(--desktop-icon-glyph-large); height: var(--desktop-icon-glyph-large); }
.size-medium .desktop-icon-glyph .icon { width: var(--desktop-icon-glyph-medium); height: var(--desktop-icon-glyph-medium); }
.size-small .desktop-icon-glyph .icon { width: var(--desktop-icon-glyph-small); height: var(--desktop-icon-glyph-small); }

/* App folders — compact 2×2 preview within a single icon cell */
.desktop-icon-app-folder {
  gap: 3px;
}

.desktop-icon-app-folder .desktop-icon-glyph {
  display: flex;
  align-items: center;
  justify-content: center;
}

.desktop-icon-app-folder .desktop-icon-label {
  -webkit-line-clamp: 1;
}

.desktop-folder-preview {
  --folder-glyph-scale: 1.72;
  position: relative;
  width: calc(var(--desktop-icon-glyph-medium) * var(--folder-glyph-scale));
  height: calc(var(--desktop-icon-glyph-medium) * var(--folder-glyph-scale));
  border-radius: 24%;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 3px;
  padding: 6px;
  box-sizing: border-box;
  background: linear-gradient(
    165deg,
    rgba(255, 255, 255, 0.26) 0%,
    rgba(190, 205, 235, 0.14) 45%,
    rgba(150, 168, 208, 0.12) 100%
  );
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  box-shadow:
    0 1px 1px rgba(0, 0, 0, 0.1),
    0 6px 16px rgba(0, 0, 0, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.35),
    inset 0 0 0 1px rgba(255, 255, 255, 0.14);
  transition: box-shadow 0.14s ease, background 0.14s ease;
}
/* Diagonal glass shine across the folder tile. */
.desktop-folder-preview::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(115deg, rgba(255, 255, 255, 0.22) 0%, rgba(255, 255, 255, 0) 42%);
  pointer-events: none;
}
.desktop-icon:hover .desktop-folder-preview {
  background: linear-gradient(
    165deg,
    rgba(255, 255, 255, 0.34) 0%,
    rgba(195, 210, 240, 0.2) 45%,
    rgba(155, 175, 215, 0.17) 100%
  );
  box-shadow:
    0 1px 1px rgba(0, 0, 0, 0.1),
    0 9px 22px rgba(0, 0, 0, 0.26),
    inset 0 1px 0 rgba(255, 255, 255, 0.45),
    inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}
.size-large .desktop-folder-preview {
  --folder-glyph-scale: 1.75;
  padding: 6px;
  gap: 3px;
}
.size-small .desktop-folder-preview {
  --folder-glyph-scale: 1.68;
  padding: 4px;
  gap: 2px;
}

.desktop-folder-mini {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 0;
  border-radius: 22%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.07));
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.14),
    0 1px 3px rgba(0, 0, 0, 0.16);
  overflow: hidden;
}
.desktop-folder-mini .icon {
  width: 86%;
  height: 86%;
  flex-shrink: 0;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.2));
}
.desktop-folder-mini .icon.icon-emoji {
  font-size: 0.85em;
  line-height: 1;
}

.folder-preview-mini-empty {
  background: rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.folder-preview-empty {
  display: grid;
  place-items: center;
  font-size: 1.6em;
  line-height: 1;
}

.desktop-icon-label {
  font-size: var(--desktop-icon-label);
  font-weight: 500;
  letter-spacing: 0.01em;
  text-align: center;
  line-height: 1.25;
  max-width: 100%;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
}
.size-large .desktop-icon-label { font-size: var(--desktop-icon-label-large); }
.size-small .desktop-icon-label { font-size: var(--desktop-icon-label-small); }

.desktop-rename {
  width: 100%;
  font-size: 12px;
  text-align: center;
  border: 1px solid var(--accent);
  border-radius: 3px;
  padding: 1px 3px;
  color: #111;
  background: #fff;
  outline: none;
}

.marquee {
  position: absolute;
  z-index: 40;
  border: 1px solid rgba(120, 170, 255, 0.9);
  background: rgba(120, 170, 255, 0.22);
  pointer-events: none;
  border-radius: 1px;
}

.desktop-folder-window {
  position: absolute;
  z-index: 120;
  width: min(720px, calc(100vw - 48px));
  max-height: min(680px, calc(100% - 48px));
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 18px;
  color: #fff;
  background: linear-gradient(180deg, rgba(34, 46, 76, 0.62) 0%, rgba(16, 24, 46, 0.66) 100%);
  box-shadow:
    0 2px 6px rgba(0, 0, 0, 0.18),
    0 30px 70px rgba(0, 0, 0, 0.42),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(38px) saturate(1.6);
  -webkit-backdrop-filter: blur(38px) saturate(1.6);
  animation: desktop-folder-pop 0.22s cubic-bezier(0.24, 1.25, 0.42, 1);
  transform-origin: top center;
}

@keyframes desktop-folder-pop {
  from { opacity: 0; transform: scale(0.94) translateY(6px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.desktop-folder-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  cursor: move;
}

.desktop-folder-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.desktop-folder-action {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  font-size: 18px;
  line-height: 1;
  color: rgba(255, 255, 255, 0.86);
}
.desktop-folder-action:hover { background: rgba(255, 255, 255, 0.16); }

.desktop-folder-searchbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 16px 0;
  padding: 0 13px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.09);
  color: rgba(255, 255, 255, 0.72);
  transition: border-color 0.14s ease, background 0.14s ease, box-shadow 0.14s ease;
}
.desktop-folder-searchbar:focus-within {
  border-color: rgba(150, 192, 255, 0.7);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 3px rgba(120, 170, 255, 0.2);
}
.desktop-folder-searchbar .icon { width: 15px; height: 15px; flex-shrink: 0; }
.desktop-folder-search {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  padding: 9px 0;
  font-size: 13px;
  color: #fff;
}
.desktop-folder-search::placeholder { color: rgba(255, 255, 255, 0.55); }
.desktop-folder-search::-webkit-search-cancel-button { cursor: pointer; }

.desktop-folder-empty {
  grid-column: 1 / -1;
  padding: 28px 12px;
  text-align: center;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.72);
}

.desktop-folder-title {
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.desktop-folder-subtitle {
  margin-top: 2px;
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.62);
}

.desktop-folder-close {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  font-size: 22px;
  line-height: 1;
  color: rgba(255, 255, 255, 0.86);
}
.desktop-folder-close:hover { background: rgba(255, 255, 255, 0.16); }

.desktop-folder-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(112px, 1fr));
  gap: 12px;
  overflow: auto;
  padding: 16px 20px 20px;
  justify-items: center;
}

.desktop-folder-app {
  min-height: 112px;
  width: 100%;
  max-width: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: start;
  gap: 10px;
  padding: 12px 8px 10px;
  border: 1px solid transparent;
  border-radius: 14px;
  color: #fff;
  text-align: center;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.45);
  cursor: grab;
  transition:
    background 0.14s ease,
    border-color 0.14s ease,
    box-shadow 0.14s ease,
    transform 0.16s cubic-bezier(0.34, 1.4, 0.64, 1);
}
.desktop-folder-app:active { cursor: grabbing; transform: scale(0.965); }
.desktop-folder-window.moving { user-select: none; }
.desktop-folder-window.dragging-app { opacity: 0.96; }
.desktop-folder-app:hover,
.desktop-folder-app.selected {
  border-color: rgba(255, 255, 255, 0.2);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.08));
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.16);
  transform: translateY(-1px);
}
.desktop-folder-app.selected {
  border-color: rgba(150, 192, 255, 0.6);
  box-shadow: 0 6px 16px rgba(30, 70, 160, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.desktop-folder-app-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.22)) drop-shadow(0 4px 9px rgba(0, 0, 0, 0.26));
  transition: transform 0.16s cubic-bezier(0.34, 1.4, 0.64, 1);
}
.desktop-folder-app:hover .desktop-folder-app-icon { transform: scale(1.06); }
.desktop-folder-app-icon .icon { width: 52px; height: 52px; }

.desktop-folder-app-label {
  max-width: 100%;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.2;
  word-break: break-word;
}

@media (prefers-reduced-motion: reduce) {
  .desktop-icon,
  .desktop-icon-glyph,
  .desktop-folder-app,
  .desktop-folder-app-icon { transition: none; }
  .desktop-icon:hover,
  .desktop-icon.is-pressing,
  .desktop-icon:hover .desktop-icon-glyph,
  .desktop-icon.is-pressing .desktop-icon-glyph,
  .desktop-folder-app:hover,
  .desktop-folder-app:active,
  .desktop-folder-app:hover .desktop-folder-app-icon { transform: none; }
  .desktop-folder-window { animation: none; }
}

@media (max-width: 520px) {
  .desktop-folder-window {
    width: calc(100vw - 24px);
    max-height: calc(100% - 32px);
  }
  .desktop-folder-grid {
    grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
    gap: 8px;
    padding: 12px;
  }
  .desktop-folder-app { min-height: 96px; max-width: 104px; }
}